But the talk of Friday is still looming around what Republican presidential candidate Donald Trump said last night in Fort Dodge at a rally.

At one point in his fiery 95-minute speech, Trump exclaimed, "How stupid are the people of Iowa?" in reference to rival Ben Carson closing the gap in the GOP polls.It's a comment that has rubbed some Iowans the wrong way.

"If you can't make it in Iowa, you can't make it anywhere," said Terri Woods, of Des Moines.

"He just needs to keep his mouth shut. He'd be better off for it," said Donna Reams, of Des Moines.

His hardest hitting attacks were directed toward Carson.

Trump questioned a part in Carson's book where he describes his violent past and attempted to stab a friend in the stomach.

"He hit the belt buckle," said Trump. "Anybody have a knife want to try it on me? Anybody? It ain'tgoing work."

In response to the attacks, Carson told reporters "Now that he's completed his gratuitous attack, why don't we press on and deal with the real issues? That's what the people of America are concerned about, not so much politics as usual, politics of personal destruction – that's what the American people are sick and tired of."

Trump also blasted the media.

"I can leave this scumbag here the press alone. I don't need them anymore. They're scum. They're garbage," he said.

KCCI political analyst Dennis Goldford said these remarks are just part of what he calls the Trump Factor.

"His supporters say, 'Ya, he's telling it like it is, and he's being honest.' None of this political babble you hear from regular candidates on the other hand what he said was rather astounding," Goldford said. "Right now, he probably did himself at least as much damage as he did himself good."

Trump's supporters said, though, they like his tough mannerisms.

"He's open, and he will tell what he thinks, not just what people want to hear," said Curtis Stover, of Fort Dodge.Iowans said they don't expect Trump to go anywhere anytime soon.

"I don't think it's anywhere close to being over yet," said Susan Eckstrom, of Fort Dodge."It is entertaining. I have to give him that," Eckstrom's husband, Max, said.

Goldford said it will be interesting to see how these impact Trump in the coming days, calling it a "prime test."